Decatur Metro Area Historical First Ancestry Data
ACS 2010-2014 data
91,157 (83.00%) out of the total population of 109,833 reported first ancestry.
| Decatur Area | % of the Total Population | Illinois | U.S. | |
| Arab | 216 | 0.20%, see rank | 0.71% | 0.56% |
| Czech | 266 | 0.24%, see rank | 0.92% | 0.47% |
| Danish | 229 | 0.21%, see rank | 0.38% | 0.42% |
| Dutch | 2,524 | 2.30%, see rank | 1.37% | 1.40% |
| English | 10,486 | 9.55%, see rank | 5.90% | 8.02% |
| French | 2,470 | 2.25%, see rank | 2.13% | 3.34% |
| German | 25,609 | 23.32%, see rank | 19.07% | 15.03% |
| Greek | 403 | 0.37%, see rank | 0.76% | 0.41% |
| Hungarian | 375 | 0.34%, see rank | 0.40% | 0.46% |
| Irish | 15,354 | 13.98%, see rank | 12.00% | 10.80% |
| Italian | 2,837 | 2.58%, see rank | 6.14% | 5.52% |
| Norwegian | 1,016 | 0.93%, see rank | 1.25% | 1.42% |
| Polish | 2,419 | 2.20%, see rank | 7.22% | 3.01% |
| Portuguese | 64 | 0.06%, see rank | 0.08% | 0.44% |
| Russian | 269 | 0.24%, see rank | 0.97% | 0.92% |
| Scotch-Irish | 1,449 | 1.32%, see rank | 0.59% | 0.99% |
| Scottish | 2,011 | 1.83%, see rank | 1.16% | 1.72% |
| Subsaharan African | 657 | 0.60%, see rank | 0.64% | 0.95% |
| Swedish | 818 | 0.74%, see rank | 2.13% | 1.27% |
| Swiss | 269 | 0.24%, see rank | 0.27% | 0.30% |
| Ukrainian | 105 | 0.10%, see rank | 0.40% | 0.31% |
| American | 15,228 | 13.86%, see rank | 5.00% | 7.12% |
| Welsh | 593 | 0.54%, see rank | 0.37% | 0.57% |
ACS 2008-2012 data
92,159 (83.36%) out of the total population of 110,558 reported first ancestry.
| Decatur Area | % of the Total Population | Illinois | U.S. | |
| Arab | 299 | 0.27%, see rank | 0.64% | 0.53% |
| Czech | 286 | 0.26%, see rank | 0.96% | 0.50% |
| Danish | 246 | 0.22%, see rank | 0.40% | 0.45% |
| Dutch | 2,250 | 2.04%, see rank | 1.46% | 1.51% |
| English | 11,416 | 10.33%, see rank | 6.23% | 8.53% |
| French | 2,498 | 2.26%, see rank | 2.26% | 3.54% |
| German | 23,307 | 21.08%, see rank | 19.89% | 15.79% |
| Greek | 488 | 0.44%, see rank | 0.78% | 0.42% |
| Hungarian | 434 | 0.39%, see rank | 0.41% | 0.48% |
| Irish | 13,709 | 12.40%, see rank | 12.52% | 11.36% |
| Italian | 2,431 | 2.20%, see rank | 6.29% | 5.66% |
| Norwegian | 777 | 0.70%, see rank | 1.30% | 1.46% |
| Polish | 2,176 | 1.97%, see rank | 7.47% | 3.13% |
| Portuguese | 90 | 0.08%, see rank | 0.08% | 0.46% |
| Russian | 233 | 0.21%, see rank | 1.03% | 0.97% |
| Scotch-Irish | 1,693 | 1.53%, see rank | 0.65% | 1.07% |
| Scottish | 1,946 | 1.76%, see rank | 1.20% | 1.81% |
| Subsaharan African | 454 | 0.41%, see rank | 0.62% | 0.93% |
| Swedish | 1,024 | 0.93%, see rank | 2.24% | 1.34% |
| Swiss | 201 | 0.18%, see rank | 0.29% | 0.31% |
| Ukrainian | 140 | 0.13%, see rank | 0.40% | 0.31% |
| American | 19,528 | 17.66%, see rank | 4.85% | 6.72% |
| Welsh | 563 | 0.51%, see rank | 0.40% | 0.60% |
ACS 2006-2010 data
92,657 (83.69%) out of the total population of 110,719 reported first ancestry.
| Decatur Area | % of the Total Population | Illinois | U.S. | |
| Arab | 206 | 0.19%, see rank | 0.55% | 0.50% |
| Czech | 257 | 0.23%, see rank | 1.01% | 0.53% |
| Danish | 211 | 0.19%, see rank | 0.42% | 0.48% |
| Dutch | 2,198 | 1.99%, see rank | 1.58% | 1.63% |
| English | 11,985 | 10.82%, see rank | 6.56% | 9.02% |
| French | 2,789 | 2.52%, see rank | 2.43% | 3.77% |
| German | 24,088 | 21.76%, see rank | 20.72% | 16.51% |
| Greek | 535 | 0.48%, see rank | 0.83% | 0.44% |
| Hungarian | 333 | 0.30%, see rank | 0.43% | 0.51% |
| Irish | 14,304 | 12.92%, see rank | 12.94% | 11.76% |
| Italian | 2,611 | 2.36%, see rank | 6.35% | 5.78% |
| Norwegian | 796 | 0.72%, see rank | 1.36% | 1.51% |
| Polish | 2,349 | 2.12%, see rank | 7.69% | 3.24% |
| Portuguese | 107 | 0.10%, see rank | 0.08% | 0.47% |
| Russian | 188 | 0.17%, see rank | 1.07% | 1.01% |
| Scotch-Irish | 1,812 | 1.64%, see rank | 1.12% | 1.72% |
| Scottish | 1,821 | 1.64%, see rank | 1.26% | 1.92% |
| Subsaharan African | 191 | 0.17%, see rank | 0.63% | 0.91% |
| Swedish | 1,218 | 1.10%, see rank | 2.37% | 1.41% |
| Swiss | 225 | 0.20%, see rank | 0.33% | 0.33% |
| Ukrainian | 86 | 0.08%, see rank | 0.40% | 0.31% |
| American | 18,788 | 16.97%, see rank | 4.61% | 6.28% |
| Welsh | 488 | 0.44%, see rank | 0.41% | 0.63% |
ACS 2005-2009 data
90,093 (82.83%) out of the total population of 108,772 reported first ancestry.
| Decatur Area | % of the Total Population | Illinois | U.S. | |
| Arab | 203 | 0.19%, see rank | 0.52% | 0.50% |
| Czech | 293 | 0.27%, see rank | 1.02% | 0.54% |
| Danish | 247 | 0.23%, see rank | 0.44% | 0.49% |
| Dutch | 2,387 | 2.19%, see rank | 1.61% | 1.68% |
| English | 12,598 | 11.58%, see rank | 6.71% | 9.29% |
| French | 3,162 | 2.91%, see rank | 2.51% | 3.90% |
| German | 25,009 | 22.99%, see rank | 21.16% | 16.89% |
| Greek | 534 | 0.49%, see rank | 0.85% | 0.45% |
| Hungarian | 397 | 0.36%, see rank | 0.45% | 0.52% |
| Irish | 14,839 | 13.64%, see rank | 13.14% | 12.01% |
| Italian | 2,895 | 2.66%, see rank | 6.45% | 5.91% |
| Norwegian | 796 | 0.73%, see rank | 1.38% | 1.55% |
| Polish | 2,158 | 1.98%, see rank | 7.85% | 3.32% |
| Portuguese | 135 | 0.12%, see rank | 0.07% | 0.48% |
| Russian | 158 | 0.15%, see rank | 1.11% | 1.04% |
| Scotch-Irish | 1,839 | 1.69%, see rank | 1.15% | 1.77% |
| Scottish | 1,919 | 1.76%, see rank | 1.31% | 1.97% |
| Subsaharan African | 206 | 0.19%, see rank | 0.62% | 0.88% |
| Swedish | 1,384 | 1.27%, see rank | 2.46% | 1.45% |
| Swiss | 193 | 0.18%, see rank | 0.33% | 0.34% |
| Ukrainian | 90 | 0.08%, see rank | 0.40% | 0.32% |
| American | 15,269 | 14.04%, see rank | 4.55% | 6.43% |
| Welsh | 566 | 0.52%, see rank | 0.42% | 0.65% |
* ACS stands for U.S. Census American Community Survey. According to the U.S. Census, if the date is a range, you can interpret the data as an average of the period of time.